Oil drum cover locking device

The utility model relates to an oil drum cover locking device which comprises an oil drum body and an oil drum cover, an oil pumping opening is formed in the top face of the oil drum body, the oil drum cover is installed on the oil pumping opening, the oil drum cover is provided with a locking device body, the locking device body comprises a lock body, a hexagon nut and a thickened locking piece, and the oil drum cover is provided with an eccentric hole. The lock body is arranged in the eccentric hole in a penetrating mode and fixed through the hexagon nut, the thickened locking piece is fixed to the end, facing the interior of the oil drum body, of the lock body, and one end of the thickened locking piece stretches out of the oil drum cover and abuts against the oil drum body after locking is conducted, so that the oil drum cover cannot be taken out. 本实用新型涉及一种油桶盖上锁装置，包括油桶本体和油桶盖，所述油桶本体顶面开有打油口，所述油桶盖安装在打油口上，所述油桶盖设有上锁装置，所述上锁装置包括锁体、六角螺母和加厚锁片，所述油桶盖设有偏心孔，所述锁体穿设于所述偏心孔并通过所述六角螺母固定，所述加厚锁片固定在锁体朝向油桶本体内部的一端，上锁后所述加厚锁片的一端伸出